Rolex · Lady-Datejust
Strap for Lady-Datejust 28 Yellow Gold Fluted / President / Cornflower Diamond
Takes 14 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
The Lady-Datejust 279178-0009, seen from the bench
Frequently asked questions
What is the lug width of the Rolex Lady-Datejust 279178-0009?
The Rolex Lady-Datejust 279178-0009 has a lug width of 14mm. This measurement refers to the internal distance between the two lugs of the case and determines the exact strap width required for a proper fit. It is the standard lug width for all 28mm Lady-Datejust references.
What is the best strap for the Rolex Lady-Datejust 279178-0009 in yellow gold?
For an 18-carat yellow gold case such as that of the Lady-Datejust 279178-0009, an alligator belly strap with symmetrical grain in cognac, bordeaux or gloss black provides the finest balance between formal elegance and respect for the metal. Vegetable-tanned calfskin is a sound alternative for those who appreciate a developing patina over time.
How do you change the strap on a Rolex Lady-Datejust 279178-0009?
To replace the strap on the Lady-Datejust 279178-0009, the spring bars must be released from the case lugs using a dedicated fork-tip spring bar tool. It is advisable to work on a padded surface to avoid scratching the yellow gold case. Alternatively, Casati Milano offers strap fitting in the Milan atelier by appointment.
Are there aftermarket straps compatible with the Rolex Lady-Datejust 279178-0009?
Yes. Any strap with a 14mm lug width is geometrically compatible with the Lady-Datejust 279178-0009. Milano Straps offers a curated selection of handcrafted 14mm straps built to millimetre tolerance, available in alligator, calfskin, shell cordovan and rubber, with tang buckle or deployant clasp closure.
How long does a leather strap last on a Rolex Lady-Datejust 279178-0009?
Longevity depends on the material and daily use. A quality alligator strap, properly cared for and kept away from prolonged exposure to water and perspiration, typically lasts between three and five years. Vegetable-tanned calfskin has a comparable lifespan and develops a sought-after patina. Milano Straps products are covered by an 18-month warranty against manufacturing defects.
The next step
The right strap isn't chosen. It is built, together.
From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.
Request an appointment →Casati Milano · Via XX Settembre 15, Milan · by appointment only

